“…In sum, previous research supports an association of NSSI with violent behaviour toward others and suggests the presence of a subgroup of individuals who engage in NSSI that also engage in violence (Hillbrand, 2001;Maden et al, 2000;Daffern & Howells, 2009 (Chermack et al, 2000;Cunradi et al, 2002;Vanfossen et al, 2010) and academic achievement (Hoptman et al, 1999;Farrington, 1989;Swahn & Donovan, 2004), as well as relationship (Saunders, 1992;Webster et al, 1997) and employment (Gatti et al, 2007;Zagar et al, 2009;O'Leary et al, 2008) difficulties have been associated with violent behaviour. In terms of individual factors, previous work has found that ASPD features are associated with violent or aggressive behaviour toward others (Meloy, 1995), and some authors have suggested an association between antisocial personality features and NSSI behaviours (Virkkunen, 1976).…”